Title :
An Autonomous Wireless Sensor Node Incorporating a Solar Cell Antenna for Energy Harvesting
Author :
Danesh, Mina ; Long, John R.
Author_Institution :
Electron. Res. Lab., Delft Univ. of Technol., Delft, Netherlands
Abstract :
An autonomous 3-5 GHz UWB wireless sensor node uses a single 2×2 cm2 solar cell to generate up to 20 mW-peak power outdoors. The solar cell behaves as a broadband monopole antenna in the 3-10 GHz range, thus miniaturizing the overall package size. The sensor node consumes an average power of 10μW when transmitting 1 kb/s every minute using OOK wide band FM data bursts. Storing 2.85 J of harvested energy on a supercapacitor from the solar cell in a single charge cycle ensures more than two days of packet data transmission.
Keywords :
amplitude shift keying; broadband antennas; energy harvesting; monopole antennas; solar cells; supercapacitors; wireless sensor networks; OOK wide band FM data bursts; autonomous UWB wireless sensor node; broadband monopole antenna; energy 2.85 J; energy harvesting; frequency 3 GHz to 10 GHz; packet data transmission; power 10 muW; power 20 mW; solar cell antenna; supercapacitor; Broadband antennas; Energy harvesting; Photovoltaic cells; Solar energy; Ultra wideband antennas; Wireless sensor networks; Energy harvesting; solar energy; ultrawideband communication; wideband antennas; wireless sensor networks;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2011.2171043
